OpenAI drops GPT-6 Sol at $2/M input with 50% fewer errors, hitting 68.8% on DeepSWE v1.1 to match Claude Fable 5 at 80% lower cost. Full tech breakdown.
OpenAI releases GPT-6 Luna at $0.10/M input and $0.50/M output, scoring 66.6% on DeepSWE to match Claude Opus 5 at 93% lower per-task operational cost.
Technical benchmark audit of DeepSWE v1.1 by Aditi Sharma. Debunking git reflog leaks and test tampering, while exposing how 166-turn Test-Time Compute subsidizes 74% Pass@1 rates.